Explosive round countermeasure system

a countermeasure system and explosive technology, applied in the direction of shields, reactive armour, protective equipment, etc., can solve the problems of exposing dismounted troops to unnecessary risks, heavy explosive armor of prior art, and a major threat to lightly armored vehicles

Inactive Publication Date: 2011-05-26
INNOVATIVE SURVIVABILITY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It has become apparent that in addition to small arms fire, rocket propelled grenades (RPG) are a major threat to lightly armored vehicles.
Explosive armor of prior art may be too heavy to add to light armored vehicles and may expose dismounted troops to unnecessary risk.
Hard armor sufficiently thick to absorb the explosively formed jet from an RPG is too heavy for light armored vehicles and may result in a sufficiently high weight to preclude air transport and the rapid deployment which may only be accomplished by air transport.
Such a jet may penetrate metal several meters distant and may be lethal at a distance of tens of meters.
In the case of direct fuse impact against an individual bar, however, the RPG is likely to function with lethal as-designed EFJ formation.

Method used

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  • Explosive round countermeasure system
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Examples

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Embodiment Construction

[0050]A countermeasure system which is capable of defusing rocket propelled grenades such as the PG-7M is provided by the present invention. Exact performance and properties vary based on the age of the unit, however as exemplary data, the PG-7M is launched at a velocity of approx. 100 meters per second. A recoilless launch burst charge carries the RPG a distance of approximately 25 meters after which the rocket engine begins to accelerate the round to a velocity of about 300 meters per second. The PG-7M and similar RPG's may detonate by three distinct means as follows:

[0051]1) The piezo-electric fuse nose of the RPG may contact the target causing it to be compressed and to generate a Voltage. The electrical circuit to the detonator is comprised of a circuit through the inner and outer ogives of the rocket nose cone. As the generated Voltage reaches approximately 1000 Volts, a spark discharge occurs within the detonator. Detonation in this case causes a shaped charge to explode whic...

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Abstract

A countermeasure system which is capable of defusing rocket propelled grenades (RPG) is provided by spacing an array of explosive charges or primacord from the protected structure to allow and sense an ogive of the fused RPG to enter into a functional plane of the array initiating one or more of the charges to collapse to ogive. The array is supported flexibly or rigidly and further ballistic protection is incorporated behind the array in fixed or inflatable forms to provide protection of the structure from the explosive products from the array and the ballistic impact of the defused RPG.

Description

REFERENCE TO RELATED APPLICATIONS[0001]This application is a divisional application of Ser. No. 10 / 526,602 filed on Mar. 9, 2005 and claims the priority of provisional application Ser. No., 60 / 618,373 filed on Oct. 7, 2004 both having the same title as the present application.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]This invention relates generally to the field of active vehicle protection systems and, more particularly, to a sensor controlled automatically deploying inflatable ballistic penetration resistant airbag system for protection of lightly armored vehicles against rocket propelled grenades (RPG) and other explosive rounds by active defusing to preclude detonation. Additional protection from small arms rounds is also provided by certain embodiments.[0004]2. Description of the Related Art[0005]Various armor systems are employed for protection of personnel and vehicles from small arms fire and shrapnel from anti-personnel mines or grenades. For both indi...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): F41H5/007F41H11/00F41H5/02F41H5/06
CPCF41H5/007F41H5/023F42B12/66F41H13/0006F41H5/026
Inventor BEACH, RODNEY B.CHRIST PETRONAKIS, SAMGULLY, WILLIAM
Owner INNOVATIVE SURVIVABILITY TECH
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